12776320823 has 16 divisors (see below), whose sum is σ = 15117020160. Its totient is φ = 10565100000.

The previous prime is 12776320819. The next prime is 12776320829. The reversal of 12776320823 is 32802367721.

It is not a de Polignac number, because 12776320823 - 2² = 12776320819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776320829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237698 + ... + 286448.

It is an arithmetic number, because the mean of its divisors is an integer number (944813760).

Almost surely, 2^12776320823 is an apocalyptic number.

12776320823 is a deficient number, since it is larger than the sum of its proper divisors (2340699337).

12776320823 is a wasteful number, since it uses less digits than its factorization.

12776320823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50078.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 12776320823 in words is "twelve billion, seven hundred seventy-six million, three hundred twenty thousand, eight hundred twenty-three".